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Unified description of pf-shell nuclei by the Monte Carlo shell model calculations

Abstract

The attempts to solve shell model by new methods are briefed. The shell model calculation by quantum Monte Carlo diagonalization which was proposed by the authors is a more practical method, and it became to be known that it can solve the problem with sufficiently good accuracy. As to the treatment of angular momentum, in the method of the authors, deformed Slater determinant is used as the basis, therefore, for making angular momentum into the peculiar state, projected operator is used. The space determined dynamically is treated mainly stochastically, and the energy of the multibody by the basis formed as the result is evaluated and selectively adopted. The symmetry is discussed, and the method of decomposing shell model space into dynamically determined space and the product of spin and isospin spaces was devised. The calculation processes are shown with the example of {sup 50}Mn nuclei. The calculation of the level structure of {sup 48}Cr with known exact energy can be done with the accuracy of peculiar absolute energy value within 200 keV. {sup 56}Ni nuclei are the self-conjugate nuclei of Z=N=28. The results of the shell model calculation of {sup 56}Ni nucleus structure by using the interactions of nuclear models  More>>
Authors:
Mizusaki, Takahiro; Otsuka, Takaharu; [1]  Honma, Michio
  1. Tokyo Univ. (Japan). Dept. of Physics
Publication Date:
Mar 01, 1998
Product Type:
Conference
Report Number:
JAERI-Conf-98-008; CONF-9707156-
Reference Number:
SCA: 663120; 663540; PA: JPN-98:007289; EDB-99:017606; SN: 98001997845
Resource Relation:
Conference: Workshop on gamma-ray spectroscopy utilizing heavy-ion, photon and RI beams, Tokai (Japan), 15-16 Jul 1997; Other Information: PBD: Mar 1998; Related Information: Is Part Of Proceeding of the workshop on gamma-ray spectroscopy utilizing heavy-ion, photon and RI beams; Oshima, Masumi; Sugita, Michiaki; Hayakawa, Takehito [eds.]; PB: 117 p.
Subject:
66 PHYSICS; NUCLEAR STRUCTURE; ENERGY LEVELS; SHELL MODELS; MONTE CARLO METHOD; NICKEL 56; ANGULAR MOMENTUM; PROJECTION OPERATORS; WAVE FUNCTIONS
OSTI ID:
300402
Research Organizations:
Japan Atomic Energy Research Inst., Tokyo (Japan)
Country of Origin:
Japan
Language:
Japanese
Other Identifying Numbers:
Other: ON: DE98755723; TRN: JP9807289
Availability:
OSTI as DE98755723
Submitting Site:
JPN
Size:
pp. 85-90
Announcement Date:
Feb 01, 1999

Citation Formats

Mizusaki, Takahiro, Otsuka, Takaharu, and Honma, Michio. Unified description of pf-shell nuclei by the Monte Carlo shell model calculations. Japan: N. p., 1998. Web.
Mizusaki, Takahiro, Otsuka, Takaharu, & Honma, Michio. Unified description of pf-shell nuclei by the Monte Carlo shell model calculations. Japan.
Mizusaki, Takahiro, Otsuka, Takaharu, and Honma, Michio. 1998. "Unified description of pf-shell nuclei by the Monte Carlo shell model calculations." Japan.
@misc{etde_300402,
title = {Unified description of pf-shell nuclei by the Monte Carlo shell model calculations}
author = {Mizusaki, Takahiro, Otsuka, Takaharu, and Honma, Michio}
abstractNote = {The attempts to solve shell model by new methods are briefed. The shell model calculation by quantum Monte Carlo diagonalization which was proposed by the authors is a more practical method, and it became to be known that it can solve the problem with sufficiently good accuracy. As to the treatment of angular momentum, in the method of the authors, deformed Slater determinant is used as the basis, therefore, for making angular momentum into the peculiar state, projected operator is used. The space determined dynamically is treated mainly stochastically, and the energy of the multibody by the basis formed as the result is evaluated and selectively adopted. The symmetry is discussed, and the method of decomposing shell model space into dynamically determined space and the product of spin and isospin spaces was devised. The calculation processes are shown with the example of {sup 50}Mn nuclei. The calculation of the level structure of {sup 48}Cr with known exact energy can be done with the accuracy of peculiar absolute energy value within 200 keV. {sup 56}Ni nuclei are the self-conjugate nuclei of Z=N=28. The results of the shell model calculation of {sup 56}Ni nucleus structure by using the interactions of nuclear models are reported. (K.I.)}
place = {Japan}
year = {1998}
month = {Mar}
}